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200 Gb/s Optical-Amplifier-Free IM/DD Transmissions using a Directly Modulated O-band DFB+R Laser targeting LR Applications
RISE Research Institutes of Sweden, Digitala system, Industriella system. KTH Royal Institute of Technology, Sweden.ORCID-id: 0000-0003-4906-1704
Riga Technical University, Latvia.
Keysight Technologies GmbH, Germany.
Nokia Bell Labs, USA.
Vise andre og tillknytning
2023 (engelsk)Inngår i: Journal of Lightwave Technology, ISSN 0733-8724, E-ISSN 1558-2213, Vol. 41, nr 11, s. 3635-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We experimentally demonstrate an O-band single-lane 200 Gb/s intensity modulation direct detection (IM/DD) transmission system using a low-chirp, broadband, and high-power directly modulated laser (DML). The employed laser is an isolator-free packaged module with over 65-GHz modulation bandwidth enabled by a distributed feedback plus passive waveguide reflection (DFB+R) design. We transmit high baud rate signals over 20-km standard single-mode fiber (SSMF) without using any optical amplifiers and demodulate them with reasonably low-complexity digital equalizers. We generate and detect up to 170 Gbaud non-return-to-zero on-off-keying (NRZ-OOK), 112 Gbaud 4-level pulse amplitude modulation (PAM4), and 100 Gbaud PAM6 in the optical back-to-back configuration. After transmission over the 20-km optical-amplifier-free SSMF link, up to 150 Gbaud NRZ-OOK, 106 Gbaud PAM4, and 80 Gbaud PAM6 signals are successfully received and demodulated, achieving bit error rate (BER) performance below the 6.25%-overhead hard-decision (HD) forward-error-correction code (FEC) limit. The demonstrated results show the possibility of meeting the strict requirements towards the development of 200Gb/s/lane IM/DD technologies, targeting 800Gb/s and 1.6Tb/s LR applications.

sted, utgiver, år, opplag, sider
Institute of Electrical and Electronics Engineers Inc. , 2023. Vol. 41, nr 11, s. 3635-
Emneord [en]
Bandwidth, Direct modulation, distributed-feedback laser, Laser modes, Measurement by laser beam, Modulation, on-off keying, Optical amplifiers, Optical modulation, Optical pulses, pulse amplitude modulation, Amplitude shift keying, Bit error rate, Digital television, Distributed feedback lasers, Error correction, Feedback amplifiers, Laser pulses, Light modulation, Optical communication, Optical signal processing, Single mode fibers, Direct-detection, Directly modulated, Intensity modulations, Non-return-to-zero, On/off-keying, Standard single mode fibers, Transmission systems
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Identifikatorer
URN: urn:nbn:se:ri:diva-64741DOI: 10.1109/JLT.2023.3261421Scopus ID: 2-s2.0-85151524887OAI: oai:DiVA.org:ri-64741DiVA, id: diva2:1756939
Merknad

This work was supported in part by the H2020 ICT TWILIGHT Project (No. 781471), in part by the Swedish Research Council (VR) projects 2019-05197and BRAIN project No. 2022-04798, in part by RTU Science Support Fund, in part by the ERDF-funded RINGO project (No. 1.1.1.1/21/A/052), and in part by the National Key Research and Development Program of China (2018YFB1801503). (Corresponding authors: X. Pang and O. Ozolins) 

Tilgjengelig fra: 2023-05-15 Laget: 2023-05-15 Sist oppdatert: 2024-03-04bibliografisk kontrollert

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